Okay. Let's take an example from the article.
Be transparent, honest, and authentic. Do not ever waiver from this; white lies and false smiles quickly snowball into a life lived out of alignment.
Let's say John is this guy who is "transparent, honest, and authentic, and never waivering."
And say Jack, John's friend, is addicted to playing Overwatch.
John comes by and says, "Jack, you shouldn't play Overwatch. You are wasting your time and energy."
Jack responds, "I know, but just this one match."
John comes back a week later and says, "Jack, I am really fucking frustrated you are still playing that shitty game. I want you to quit right this fucking moment." The article advised to never hide your emotions, so I am following that mantra.
How is Jack going to feel after that? Is he going to stop playing video games? Have parents yelling stopped children from playing Minecraft?
No. Why? The world really isn't that simple. Just saying "Be honest all the time" is the worst advice you can give. The principle is nice and impressive (because you always keep it!) but in reality, John is either a loner or a hypocrite.
Consider Steve, one who wields both self-reliance and people-pleasing, visiting Jack who is still addicted to Overwatch. Steve knows Overwatch is killing Jack's life, and deeply concerned for him. But he does the not lazy thing and waits. Instead of admonishing Jack, Steve becomes interested in Jack. Steve asks Jack how this game works, which hero he is playing, etc.
Then Jack opens up to Steve, which, in due time, can allow Steve to change Jack's mind.
If you want to have the feeling that you changed people's minds, be honest all the time. But if you actually want to change people's minds, then don't be honest all the time. Utilize white lies.
In that sense, people who are always honest are incredibly selfish.
In the quotation far above, I would just add two more words. To myself. Be transparent, honest, and authentic to yourself.
Being honest to others always sounds cool, but is in reality excruciating lazy. So lazy that I wouldn't want a friend like that, ever. I want a friend who is more wise and less automatic about his choice between truths and lies.